If the oil warning light stays on continuously while driving, what fault is it indicating?

Question

DentroTest · Accepted Answer

The oil warning light (usually oilcan-shaped and red) indicates a critical drop in pressure in the engine's lubrication circuit. The most common causes are a very low oil level, a serious leak or a failure of the oil pump. If the engine keeps running without adequate pressure, the metal parts rub without lubrication and the engine can seize, so the prudent course is to stop the vehicle safely and switch off the engine as soon as possible. Thinking that it warns of excessive pressure is a mistake: the light does not warn of overpressure. And saying that the oil pressure and flow are correct is false, because with the engine running and the circuit in good condition that light must remain off.

If the oil warning light stays on continuously while driving, what fault is it indicating?

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